60 global challenges talks from conference stages on Mezzo — ranked by views, including Questioning the universe by Stephen Hawking.
- Questioning the universeStephen Hawking
- This is what it's like to go undercover in North KoreaSuki Kim
- What my religion really says about womenAlaa Murabit
- How to make filthy water drinkableMichael Pritchard
- Understanding the rise of ChinaMartin Jacques
- Are China and the US doomed to conflict?Kevin Rudd
- How economic inequality harms societiesRichard Wilkinson
- Where is home?Pico Iyer
- The art of stillnessPico Iyer
This ancient rock is changing our theory on the origin of lifeTara Djokic- Why do societies collapse?Jared Diamond
- Why nations should pursue soft powerShashi Tharoor
- On reading the KoranLesley Hazleton
The fascinating (and dangerous) places scientists aren't exploringElla Al-Shamahi- The rise of the new global super-richChrystia Freeland
What ping-pong taught me about lifePico Iyer
How the West can adapt to a rising AsiaKishore Mahbubani
What vaccinating vampire bats can teach us about pandemicsDaniel Streicker- The why and how of effective altruismPeter Singer
3 questions we should ask about nuclear weaponsEmma Belcher
10 years to transform the future of humanity -- or destabilize the planetJohan Rockström- The beauty of what we'll never knowPico Iyer
A wall won't solve America's border problemsWill Hurd- What I learned from Nelson MandelaBoyd Varty
- 5 transformational policies for a prosperous and sustainable worldJohan Rockström
How to end the pandemic -- and prepare for the nextMaria Van Kerkhove
The link between inequality and anxietyRichard Wilkinson
How we're using DNA tech to help farmers fight crop diseasesLaura Boykin- The doubt essential to faithLesley Hazleton
- Let the environment guide our developmentJohan Rockström
- Behind the Great Firewall of ChinaMichael Anti
- Sex, drugs and HIV -- let's get rationalElizabeth Pisani
How women are revolutionizing RwandaAgnes Binagwaho- Mapping the future of countriesParag Khanna
The mood-boosting power of cryingKathy Mendias- What happens when a city runs out of room for its deadAlison Killing
- Want to help Africa? Do business hereNgozi Okonjo-Iweala
- Hire the hackers!Misha Glenny
- How fake news does real harmStephanie Busari
- Adventures of an asteroid hunterCarrie Nugent
- The inside story of the Paris climate agreementChristiana Figueres
- How we're saving one of Earth's last wild placesSteve Boyes
The race to a zero-emission world starts now Antonio Guterres
The case for stubborn optimism on climateChristiana Figueres- Two nameless bodies washed up on the beach. Here are their storiesAnders Fjellberg
- There’s a better way to die, and architecture can helpAlison Killing
- How fear drives American politicsDavid Rothkopf
- How Mars might hold the secret to the origin of lifeNathalie Cabrol
- 3 reasons we still haven’t gotten rid of malariaSonia Shah
- The biggest risks facing cities -- and some solutionsRobert Muggah
- How megacities are changing the map of the worldParag Khanna
- Navigating our global futureIan Goldin
- Our century's greatest injusticeSheryl WuDunn
- Why I study the most dangerous animal on earth -- mosquitoesFredros Okumu
- Wiring a web for global goodGordon Brown
- Humanity vs. Ebola. How we could win a terrifying warBruce Aylward
Refugees have the right to be protectedAntonio Guterres
We could kick-start life on another planet. Should we?Betül Kaçar- What it's like to be a parent in a war zoneAala El-Khani
- How societies can grow old betterJared Diamond